package main.java.indi.zyj.hot100;

public class _17_rotate {

    public void rotate(int[][] matrix) {

        int n = matrix.length;
        int temp = 0;

        // 水平翻转
        for (int i = 0; i < n / 2; i++) {
            for (int j = 0; j < n; j++) {
                temp = matrix[i][j];
                matrix[i][j] = matrix[n - i - 1][j];
                matrix[n - i - 1][j] = temp;
            }
        }

        // 主对角线翻转
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < i; j++) {
                temp = matrix[i][j];
                matrix[i][j] = matrix[j][i];
                matrix[j][i] = temp;
            }
        }

    }
}
